feat(optee): bump to latest version 4.4.0

Change-Id: Ia1b1a72b1264bb38a630e98745f8ef5a1377a2b1
Signed-off-by: Harrison Mutai <harrison.mutai@arm.com>
diff --git a/fvp_utils.sh b/fvp_utils.sh
index 1bd713d..4f3eaf4 100644
--- a/fvp_utils.sh
+++ b/fvp_utils.sh
@@ -41,6 +41,9 @@
 
 rootfs_url="$linaro_release/lt-vexpress64-openembedded_minimal-armv8-gcc-5.2_20170127-761.img.gz"
 
+optee_version="4.4.0"
+optee_path=$tfa_downloads/optee/${optee_version}
+
 # Default FVP model variables
 default_model_dtb="dtb.bin"
 
diff --git a/run_config/fvp-optee b/run_config/fvp-optee
index 85e71c3..612a424 100644
--- a/run_config/fvp-optee
+++ b/run_config/fvp-optee
@@ -6,5 +6,5 @@
 #
 
 post_tf_build() {
-	url="$tfa_downloads/optee/tee.bin" filename="bl32.bin" fetch_and_archive
+	url="${optee_path}/tee-raw.bin" filename="bl32.bin" fetch_and_archive
 }